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156 lines
4.3 KiB
156 lines
4.3 KiB
/* |
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* Linux driver attachment glue for aic7770 based controllers. |
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* |
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* Copyright (c) 2000-2003 Adaptec Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions, and the following disclaimer, |
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* without modification. |
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer |
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* substantially similar to the "NO WARRANTY" disclaimer below |
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* ("Disclaimer") and any redistribution must be conditioned upon |
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* including a substantially similar Disclaimer requirement for further |
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* binary redistribution. |
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* 3. Neither the names of the above-listed copyright holders nor the names |
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* of any contributors may be used to endorse or promote products derived |
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* from this software without specific prior written permission. |
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* |
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* Alternatively, this software may be distributed under the terms of the |
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* GNU General Public License ("GPL") version 2 as published by the Free |
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* Software Foundation. |
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* |
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* NO WARRANTY |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGES. |
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* |
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* $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7770_osm.c#14 $ |
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*/ |
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#include "aic7xxx_osm.h" |
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#include <linux/device.h> |
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#include <linux/eisa.h> |
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int |
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aic7770_map_registers(struct ahc_softc *ahc, u_int port) |
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{ |
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/* |
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* Lock out other contenders for our i/o space. |
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*/ |
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if (!request_region(port, AHC_EISA_IOSIZE, "aic7xxx")) |
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return (ENOMEM); |
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ahc->tag = BUS_SPACE_PIO; |
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ahc->bsh.ioport = port; |
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return (0); |
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} |
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int |
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aic7770_map_int(struct ahc_softc *ahc, u_int irq) |
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{ |
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int error; |
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int shared; |
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shared = 0; |
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if ((ahc->flags & AHC_EDGE_INTERRUPT) == 0) |
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shared = IRQF_SHARED; |
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error = request_irq(irq, ahc_linux_isr, shared, "aic7xxx", ahc); |
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if (error == 0) |
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ahc->platform_data->irq = irq; |
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return (-error); |
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} |
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static int |
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aic7770_probe(struct device *dev) |
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{ |
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struct eisa_device *edev = to_eisa_device(dev); |
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u_int eisaBase = edev->base_addr+AHC_EISA_SLOT_OFFSET; |
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struct ahc_softc *ahc; |
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char buf[80]; |
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char *name; |
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int error; |
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sprintf(buf, "ahc_eisa:%d", eisaBase >> 12); |
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name = kstrdup(buf, GFP_ATOMIC); |
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if (name == NULL) |
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return (ENOMEM); |
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ahc = ahc_alloc(&aic7xxx_driver_template, name); |
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if (ahc == NULL) |
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return (ENOMEM); |
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ahc->dev = dev; |
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error = aic7770_config(ahc, aic7770_ident_table + edev->id.driver_data, |
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eisaBase); |
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if (error != 0) { |
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ahc->bsh.ioport = 0; |
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ahc_free(ahc); |
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return (error); |
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} |
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dev_set_drvdata(dev, ahc); |
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error = ahc_linux_register_host(ahc, &aic7xxx_driver_template); |
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return (error); |
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} |
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static int |
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aic7770_remove(struct device *dev) |
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{ |
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struct ahc_softc *ahc = dev_get_drvdata(dev); |
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u_long s; |
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if (ahc->platform_data && ahc->platform_data->host) |
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scsi_remove_host(ahc->platform_data->host); |
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ahc_lock(ahc, &s); |
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ahc_intr_enable(ahc, FALSE); |
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ahc_unlock(ahc, &s); |
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ahc_free(ahc); |
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return 0; |
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} |
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static struct eisa_device_id aic7770_ids[] = { |
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{ "ADP7771", 0 }, /* AHA 274x */ |
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{ "ADP7756", 1 }, /* AHA 284x BIOS enabled */ |
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{ "ADP7757", 2 }, /* AHA 284x BIOS disabled */ |
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{ "ADP7782", 3 }, /* AHA 274x Olivetti OEM */ |
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{ "ADP7783", 4 }, /* AHA 274x Olivetti OEM (Differential) */ |
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{ "ADP7770", 5 }, /* AIC7770 generic */ |
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{ "" } |
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}; |
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MODULE_DEVICE_TABLE(eisa, aic7770_ids); |
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static struct eisa_driver aic7770_driver = { |
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.id_table = aic7770_ids, |
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.driver = { |
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.name = "aic7xxx", |
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.probe = aic7770_probe, |
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.remove = aic7770_remove, |
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} |
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}; |
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int |
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ahc_linux_eisa_init(void) |
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{ |
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return eisa_driver_register(&aic7770_driver); |
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} |
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void |
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ahc_linux_eisa_exit(void) |
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{ |
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eisa_driver_unregister(&aic7770_driver); |
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}
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